From patchwork Tue Dec 15 18:22:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddhesh Poyarekar X-Patchwork-Id: 1416663 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=libc-alpha-bounces@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=sourceware.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.a=rsa-sha256 header.s=default header.b=ARS7Q4pJ; dkim-atps=neutral Received: from sourceware.org (unknown [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CwRTB6Y6qz9sSf for ; Wed, 16 Dec 2020 05:23:10 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id B0B563870860; Tue, 15 Dec 2020 18:23:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B0B563870860 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1608056584; bh=HZAIT8tSEBnHDEoHrHagxxordFmEb8SNwGY1HXKG/y0=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=ARS7Q4pJlZErj3AyHQjJpqwNiLX1SFOKk2Te6Bvujqwter2A+B/ND9RhlS/aYBzrL 7dvuSxm1e3SCAK4p45y0DV9kOjew/CJ0qE5EFZYyHCj1IdiHxDo6m79LqhTh1wzfPL eR/r0g439N7i2jLwiazk+R1ZB6Ov8rcFPhG5Bdbw= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from butterfly.birch.relay.mailchannels.net (butterfly.birch.relay.mailchannels.net [23.83.209.27]) by sourceware.org (Postfix) with ESMTPS id 024783846078 for ; Tue, 15 Dec 2020 18:23:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 024783846078 X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id C24F71E1F18; Tue, 15 Dec 2020 18:23:00 +0000 (UTC) Received: from pdx1-sub0-mail-a35.g.dreamhost.com (100-100-138-63.trex.outbound.svc.cluster.local [100.100.138.63]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 654F41E242D; Tue, 15 Dec 2020 18:23:00 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from pdx1-sub0-mail-a35.g.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384) by 0.0.0.0:2500 (trex/5.18.11); Tue, 15 Dec 2020 18:23:00 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|siddhesh@gotplt.org X-MailChannels-Auth-Id: dreamhost X-Celery-Shade: 7cad7adc743e9728_1608056580682_3784439490 X-MC-Loop-Signature: 1608056580682:425407088 X-MC-Ingress-Time: 1608056580682 Received: from pdx1-sub0-mail-a35.g.dreamhost.com (localhost [127.0.0.1]) by pdx1-sub0-mail-a35.g.dreamhost.com (Postfix) with ESMTP id E9FC87ED2C; Tue, 15 Dec 2020 10:22:59 -0800 (PST) Received: from rhbox.redhat.com (unknown [1.186.101.110]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: siddhesh@gotplt.org) by pdx1-sub0-mail-a35.g.dreamhost.com (Postfix) with ESMTPSA id A39AB7E357; Tue, 15 Dec 2020 10:22:57 -0800 (PST) X-DH-BACKEND: pdx1-sub0-mail-a35 To: libc-alpha@sourceware.org Subject: [PATCH v4 1/2] string: _FORTIFY_SOURCE=3 using __builtin_dynamic_object_size Date: Tue, 15 Dec 2020 23:52:37 +0530 Message-Id: <20201215182238.2780547-2-siddhesh@sourceware.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201215182238.2780547-1-siddhesh@sourceware.org> References: <20201215182238.2780547-1-siddhesh@sourceware.org> MIME-Version: 1.0 X-Spam-Status: No, score=-9.7 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_NONE, KAM_DMARC_STATUS, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Siddhesh Poyarekar via Libc-alpha From: Siddhesh Poyarekar Reply-To: Siddhesh Poyarekar Cc: fweimer@redhat.com, jakub@redhat.com Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Introduce a new _FORTIFY_SOURCE level of 3 to enable additional fortifications that may have a potential performance impact. At the moment this level of fortification involves the use of the __builtin_dynamic_object_size builtin whenever the compiler supports it. This change enhances fortified string functions to use __builtin_dynamic_object_size under _FORTIFY_SOURCE=3 whenever the compiler supports it. __builtin_dynamic_object_size ----------------------------- __builtin_dynamic_object_size is an LLVM builtin that is similar to __builtin_object_size. In addition to what __builtin_object_size does, i.e. replace the builtin call with a constant object size, __builtin_dynamic_object_size will replace the call site with an expression that evaluates to the object size, thus expanding its applicability. In practice, __builtin_dynamic_object_size evaluates these expressions through malloc/calloc calls that it can associate with the object being evaluated. A simple motivating example is below; -D_FORTIFY_SOURCE=2 would miss this and emit memcpy, but -D_FORTIFY_SOURCE=3 with the help of __builtin_dynamic_object_size is able to emit __memcpy_chk with the allocation size expression passed into the function: void *copy_obj (const void *src, size_t alloc, size_t copysize) { void *obj = malloc (alloc); memcpy (obj, src, copysize); return obj; } Limitations ----------- If the object was allocated elsewhere that the compiler cannot see, or if it was allocated in the function with a function that the compiler does not recognize as an allocator then __builtin_dynamic_object_size also returns -1. Further, the expression used to compute object size may be non-trivial and may potentially incur a noticeable performance impact. These fortifications are hence enabled at a new _FORTIFY_SOURCE level to allow developers to make a choice on the tradeoff according to their environment. --- NEWS | 6 ++++++ include/features.h | 11 +++++++++-- include/string.h | 5 +++-- manual/creature.texi | 3 ++- misc/sys/cdefs.h | 9 +++++++++ string/bits/string_fortified.h | 22 +++++++++++----------- string/bits/strings_fortified.h | 4 ++-- 7 files changed, 42 insertions(+), 18 deletions(-) diff --git a/NEWS b/NEWS index 0820984547..df46560878 100644 --- a/NEWS +++ b/NEWS @@ -28,6 +28,12 @@ Major new features: The 32-bit RISC-V port requires at least Linux 5.4, GCC 7.1 and binutils 2.28. +* A new fortification level _FORTIFY_SOURCE=3 is available. At this level, + glibc may use additional checks that may have an additional performance + overhead. At present these checks are available only on LLVM 9 and later. + The latest GCC available at this time (10.2) does not support this level of + fortification. + Deprecated and removed features, and other changes affecting compatibility: * The mallinfo function is marked deprecated. Callers should call diff --git a/include/features.h b/include/features.h index f3e62d3362..b1225d5b3f 100644 --- a/include/features.h +++ b/include/features.h @@ -397,10 +397,17 @@ # warning _FORTIFY_SOURCE requires compiling with optimization (-O) # elif !__GNUC_PREREQ (4, 1) # warning _FORTIFY_SOURCE requires GCC 4.1 or later -# elif _FORTIFY_SOURCE > 1 +# elif _FORTIFY_SOURCE == 3 && !__glibc_clang_prereq(9, 0) +# warning _FORTIFY_SOURCE > 2 requires LLVM 9.0 or later, falling back to 2 # define __USE_FORTIFY_LEVEL 2 +# elif _FORTIFY_SOURCE > 2 +# if __glibc_clang_prereq(9, 0) +# define __USE_FORTIFY_LEVEL 3 +# else +# define __USE_FORTIFY_LEVEL 2 +# endif # else -# define __USE_FORTIFY_LEVEL 1 +# define __USE_FORTIFY_LEVEL _FORTIFY_SOURCE # endif #endif #ifndef __USE_FORTIFY_LEVEL diff --git a/include/string.h b/include/string.h index 7d344d77d4..841ee05a1d 100644 --- a/include/string.h +++ b/include/string.h @@ -123,10 +123,11 @@ libc_hidden_proto (__strerror_l) void __explicit_bzero_chk_internal (void *, size_t, size_t) __THROW __nonnull ((1)) attribute_hidden; # define explicit_bzero(buf, len) \ - __explicit_bzero_chk_internal (buf, len, __bos0 (buf)) + __explicit_bzero_chk_internal (buf, len, __objsize0 (buf)) #elif !IS_IN (nonlib) void __explicit_bzero_chk (void *, size_t, size_t) __THROW __nonnull ((1)); -# define explicit_bzero(buf, len) __explicit_bzero_chk (buf, len, __bos0 (buf)) +# define explicit_bzero(buf, len) __explicit_bzero_chk (buf, len, \ + __objsize0 (buf)) #endif libc_hidden_builtin_proto (memchr) diff --git a/manual/creature.texi b/manual/creature.texi index be5050468b..31208ccb2b 100644 --- a/manual/creature.texi +++ b/manual/creature.texi @@ -254,7 +254,8 @@ included. @standards{GNU, (none)} If this macro is defined to @math{1}, security hardening is added to various library functions. If defined to @math{2}, even stricter -checks are applied. +checks are applied. If defined to @math{3}, @theglibc{} may also use +checks that may have an additional performance overhead. @end defvr @defvr Macro _REENTRANT diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h index a06f1cfd91..ca51a5c3ad 100644 --- a/misc/sys/cdefs.h +++ b/misc/sys/cdefs.h @@ -127,6 +127,15 @@ #define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1) #define __bos0(ptr) __builtin_object_size (ptr, 0) +/* Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available. */ +#if __USE_FORTIFY_LEVEL == 3 && __glibc_clang_prereq (9, 0) +# define __objsize0(__o) __builtin_dynamic_object_size (__o, 0) +# define __objsize(__o) __builtin_dynamic_object_size (__o, 1) +#else +# define __objsize0(__o) __bos0 (__o) +# define __objsize(__o) __bos (__o) +#endif + #if __GNUC_PREREQ (4,3) # define __warnattr(msg) __attribute__((__warning__ (msg))) # define __errordecl(name, msg) \ diff --git a/string/bits/string_fortified.h b/string/bits/string_fortified.h index 4c1aeb45f1..c9f9197aef 100644 --- a/string/bits/string_fortified.h +++ b/string/bits/string_fortified.h @@ -26,13 +26,13 @@ __fortify_function void * __NTH (memcpy (void *__restrict __dest, const void *__restrict __src, size_t __len)) { - return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest)); + return __builtin___memcpy_chk (__dest, __src, __len, __objsize0 (__dest)); } __fortify_function void * __NTH (memmove (void *__dest, const void *__src, size_t __len)) { - return __builtin___memmove_chk (__dest, __src, __len, __bos0 (__dest)); + return __builtin___memmove_chk (__dest, __src, __len, __objsize0 (__dest)); } #ifdef __USE_GNU @@ -40,7 +40,7 @@ __fortify_function void * __NTH (mempcpy (void *__restrict __dest, const void *__restrict __src, size_t __len)) { - return __builtin___mempcpy_chk (__dest, __src, __len, __bos0 (__dest)); + return __builtin___mempcpy_chk (__dest, __src, __len, __objsize0 (__dest)); } #endif @@ -53,7 +53,7 @@ __NTH (mempcpy (void *__restrict __dest, const void *__restrict __src, __fortify_function void * __NTH (memset (void *__dest, int __ch, size_t __len)) { - return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest)); + return __builtin___memset_chk (__dest, __ch, __len, __objsize0 (__dest)); } #ifdef __USE_MISC @@ -65,21 +65,21 @@ void __explicit_bzero_chk (void *__dest, size_t __len, size_t __destlen) __fortify_function void __NTH (explicit_bzero (void *__dest, size_t __len)) { - __explicit_bzero_chk (__dest, __len, __bos0 (__dest)); + __explicit_bzero_chk (__dest, __len, __objsize0 (__dest)); } #endif __fortify_function char * __NTH (strcpy (char *__restrict __dest, const char *__restrict __src)) { - return __builtin___strcpy_chk (__dest, __src, __bos (__dest)); + return __builtin___strcpy_chk (__dest, __src, __objsize (__dest)); } #ifdef __USE_GNU __fortify_function char * __NTH (stpcpy (char *__restrict __dest, const char *__restrict __src)) { - return __builtin___stpcpy_chk (__dest, __src, __bos (__dest)); + return __builtin___stpcpy_chk (__dest, __src, __objsize (__dest)); } #endif @@ -88,14 +88,14 @@ __fortify_function char * __NTH (strncpy (char *__restrict __dest, const char *__restrict __src, size_t __len)) { - return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest)); + return __builtin___strncpy_chk (__dest, __src, __len, __objsize (__dest)); } #if __GNUC_PREREQ (4, 7) || __glibc_clang_prereq (2, 6) __fortify_function char * __NTH (stpncpy (char *__dest, const char *__src, size_t __n)) { - return __builtin___stpncpy_chk (__dest, __src, __n, __bos (__dest)); + return __builtin___stpncpy_chk (__dest, __src, __n, __objsize (__dest)); } #else extern char *__stpncpy_chk (char *__dest, const char *__src, size_t __n, @@ -118,7 +118,7 @@ __NTH (stpncpy (char *__dest, const char *__src, size_t __n)) __fortify_function char * __NTH (strcat (char *__restrict __dest, const char *__restrict __src)) { - return __builtin___strcat_chk (__dest, __src, __bos (__dest)); + return __builtin___strcat_chk (__dest, __src, __objsize (__dest)); } @@ -126,7 +126,7 @@ __fortify_function char * __NTH (strncat (char *__restrict __dest, const char *__restrict __src, size_t __len)) { - return __builtin___strncat_chk (__dest, __src, __len, __bos (__dest)); + return __builtin___strncat_chk (__dest, __src, __len, __objsize (__dest)); } #endif /* bits/string_fortified.h */ diff --git a/string/bits/strings_fortified.h b/string/bits/strings_fortified.h index d4091f4f69..122199e036 100644 --- a/string/bits/strings_fortified.h +++ b/string/bits/strings_fortified.h @@ -22,13 +22,13 @@ __fortify_function void __NTH (bcopy (const void *__src, void *__dest, size_t __len)) { - (void) __builtin___memmove_chk (__dest, __src, __len, __bos0 (__dest)); + (void) __builtin___memmove_chk (__dest, __src, __len, __objsize0 (__dest)); } __fortify_function void __NTH (bzero (void *__dest, size_t __len)) { - (void) __builtin___memset_chk (__dest, '\0', __len, __bos0 (__dest)); + (void) __builtin___memset_chk (__dest, '\0', __len, __objsize0 (__dest)); } #endif From patchwork Tue Dec 15 18:22:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddhesh Poyarekar X-Patchwork-Id: 1416665 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=libc-alpha-bounces@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=sourceware.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.a=rsa-sha256 header.s=default header.b=PJXsCn4B; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CwRTL2gpdz9sSf for ; Wed, 16 Dec 2020 05:23:18 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 41540386F81D; Tue, 15 Dec 2020 18:23:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 41540386F81D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1608056596; bh=hzHhTTByye3qwfYCMmaLKdcnfPMS3Hn14Ys8ejjRY6w=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=PJXsCn4B/QGjaPj61PgoJWlOIrvzPCL3ttsH6ifiylqOSgdYNofw6Vym6PzKJXU6f hoaB1wJeqMHiPJOPrTdK7qJyUWLwZTaLnFA9+eL8IWXXOHl1rP9oPyIYfnRf9Ice/u a1Neih1iSqJoq2KIrmRlWBSQejHwO+7fserwiVVM= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from hedgehog.birch.relay.mailchannels.net (hedgehog.birch.relay.mailchannels.net [23.83.209.81]) by sourceware.org (Postfix) with ESMTPS id 12058386F81D for ; Tue, 15 Dec 2020 18:23:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 12058386F81D X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 958EB642E44; Tue, 15 Dec 2020 18:23:06 +0000 (UTC) Received: from pdx1-sub0-mail-a35.g.dreamhost.com (100-96-1-8.trex.outbound.svc.cluster.local [100.96.1.8]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 3D6856408DB; Tue, 15 Dec 2020 18:23:04 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from pdx1-sub0-mail-a35.g.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384) by 0.0.0.0:2500 (trex/5.18.11); Tue, 15 Dec 2020 18:23:06 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|siddhesh@gotplt.org X-MailChannels-Auth-Id: dreamhost X-Inform-Wide-Eyed: 3e06e42552fcf51f_1608056586513_1546271544 X-MC-Loop-Signature: 1608056586513:3047508854 X-MC-Ingress-Time: 1608056586512 Received: from pdx1-sub0-mail-a35.g.dreamhost.com (localhost [127.0.0.1]) by pdx1-sub0-mail-a35.g.dreamhost.com (Postfix) with ESMTP id BAB207F4E0; Tue, 15 Dec 2020 10:23:03 -0800 (PST) Received: from rhbox.redhat.com (unknown [1.186.101.110]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: siddhesh@gotplt.org) by pdx1-sub0-mail-a35.g.dreamhost.com (Postfix) with ESMTPSA id B7A957F5FF; Tue, 15 Dec 2020 10:23:00 -0800 (PST) X-DH-BACKEND: pdx1-sub0-mail-a35 To: libc-alpha@sourceware.org Subject: [PATCH v4 2/2] nonstring: _FORTIFY_SOURCE=3 using __builtin_dynamic_object_size Date: Tue, 15 Dec 2020 23:52:38 +0530 Message-Id: <20201215182238.2780547-3-siddhesh@sourceware.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201215182238.2780547-1-siddhesh@sourceware.org> References: <20201215182238.2780547-1-siddhesh@sourceware.org> MIME-Version: 1.0 X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_NONE, KAM_DMARC_STATUS, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Siddhesh Poyarekar via Libc-alpha From: Siddhesh Poyarekar Reply-To: Siddhesh Poyarekar Cc: fweimer@redhat.com, jakub@redhat.com Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" These fortified functions use, roughly, the following idiom to implement fortifications: if (__builtin_dynamic_object_size (obj) != -1) { __fortified_chk (); return; } __unfortified (); LLVM is currently unable to fold the conditional; a patch has been proposed[1] to fix this. Due to this limitation in llvm, these fortifications have a higher performance cost than those in the first patch. [1] https://reviews.llvm.org/D93015 --- io/bits/poll2.h | 16 +++--- libio/bits/stdio.h | 2 +- libio/bits/stdio2.h | 53 ++++++++--------- posix/bits/unistd.h | 112 +++++++++++++++++++----------------- socket/bits/socket2.h | 18 +++--- stdlib/bits/stdlib.h | 37 ++++++------ wcsmbs/bits/wchar2.h | 131 +++++++++++++++++++++--------------------- 7 files changed, 189 insertions(+), 180 deletions(-) diff --git a/io/bits/poll2.h b/io/bits/poll2.h index dca49717db..ce107b8e50 100644 --- a/io/bits/poll2.h +++ b/io/bits/poll2.h @@ -35,12 +35,12 @@ extern int __REDIRECT (__poll_chk_warn, (struct pollfd *__fds, nfds_t __nfds, __fortify_function int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout) { - if (__bos (__fds) != (__SIZE_TYPE__) -1) + if (__objsize (__fds) != (__SIZE_TYPE__) -1) { if (! __builtin_constant_p (__nfds)) - return __poll_chk (__fds, __nfds, __timeout, __bos (__fds)); - else if (__bos (__fds) / sizeof (*__fds) < __nfds) - return __poll_chk_warn (__fds, __nfds, __timeout, __bos (__fds)); + return __poll_chk (__fds, __nfds, __timeout, __objsize (__fds)); + else if (__objsize (__fds) / sizeof (*__fds) < __nfds) + return __poll_chk_warn (__fds, __nfds, __timeout, __objsize (__fds)); } return __poll_alias (__fds, __nfds, __timeout); @@ -65,13 +65,13 @@ __fortify_function int ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout, const __sigset_t *__ss) { - if (__bos (__fds) != (__SIZE_TYPE__) -1) + if (__objsize (__fds) != (__SIZE_TYPE__) -1) { if (! __builtin_constant_p (__nfds)) - return __ppoll_chk (__fds, __nfds, __timeout, __ss, __bos (__fds)); - else if (__bos (__fds) / sizeof (*__fds) < __nfds) + return __ppoll_chk (__fds, __nfds, __timeout, __ss, __objsize (__fds)); + else if (__objsize (__fds) / sizeof (*__fds) < __nfds) return __ppoll_chk_warn (__fds, __nfds, __timeout, __ss, - __bos (__fds)); + __objsize (__fds)); } return __ppoll_alias (__fds, __nfds, __timeout, __ss); diff --git a/libio/bits/stdio.h b/libio/bits/stdio.h index 6745571ed5..6d1f0f9fc9 100644 --- a/libio/bits/stdio.h +++ b/libio/bits/stdio.h @@ -31,7 +31,7 @@ #ifdef __USE_EXTERN_INLINES -/* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different +/* For -D_FORTIFY_SOURCE{,=2,=3} bits/stdio2.h will define a different inline. */ # if !(__USE_FORTIFY_LEVEL > 0 && defined __fortify_function) /* Write formatted output to stdout from argument list ARG. */ diff --git a/libio/bits/stdio2.h b/libio/bits/stdio2.h index ff9202c2cb..b5e804ca13 100644 --- a/libio/bits/stdio2.h +++ b/libio/bits/stdio2.h @@ -36,11 +36,11 @@ __fortify_function int __NTH (sprintf (char *__restrict __s, const char *__restrict __fmt, ...)) { return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __va_arg_pack ()); + __objsize (__s), __fmt, __va_arg_pack ()); } #elif !defined __cplusplus # define sprintf(str, ...) \ - __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), \ + __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __objsize (str), \ __VA_ARGS__) #endif @@ -49,7 +49,7 @@ __NTH (vsprintf (char *__restrict __s, const char *__restrict __fmt, __gnuc_va_list __ap)) { return __builtin___vsprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __ap); + __objsize (__s), __fmt, __ap); } #if defined __USE_ISOC99 || defined __USE_UNIX98 @@ -68,12 +68,12 @@ __NTH (snprintf (char *__restrict __s, size_t __n, const char *__restrict __fmt, ...)) { return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __va_arg_pack ()); + __objsize (__s), __fmt, __va_arg_pack ()); } # elif !defined __cplusplus # define snprintf(str, len, ...) \ - __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \ - __VA_ARGS__) + __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, \ + __objsize (str), __VA_ARGS__) # endif __fortify_function int @@ -81,7 +81,7 @@ __NTH (vsnprintf (char *__restrict __s, size_t __n, const char *__restrict __fmt, __gnuc_va_list __ap)) { return __builtin___vsnprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __ap); + __objsize (__s), __fmt, __ap); } #endif @@ -237,8 +237,8 @@ extern char *__REDIRECT (__gets_warn, (char *__str), gets) __fortify_function __wur char * gets (char *__str) { - if (__bos (__str) != (size_t) -1) - return __gets_chk (__str, __bos (__str)); + if (__objsize (__str) != (size_t) -1) + return __gets_chk (__str, __objsize (__str)); return __gets_warn (__str); } #endif @@ -259,13 +259,13 @@ extern char *__REDIRECT (__fgets_chk_warn, __fortify_function __wur __attr_access ((__write_only__, 1, 2)) char * fgets (char *__restrict __s, int __n, FILE *__restrict __stream) { - if (__bos (__s) != (size_t) -1) + if (__objsize (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) - return __fgets_chk (__s, __bos (__s), __n, __stream); + return __fgets_chk (__s, __objsize (__s), __n, __stream); - if ((size_t) __n > __bos (__s)) - return __fgets_chk_warn (__s, __bos (__s), __n, __stream); + if ((size_t) __n > __objsize (__s)) + return __fgets_chk_warn (__s, __objsize (__s), __n, __stream); } return __fgets_alias (__s, __n, __stream); } @@ -289,15 +289,16 @@ __fortify_function __wur size_t fread (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) { - if (__bos0 (__ptr) != (size_t) -1) + if (__objsize0 (__ptr) != (size_t) -1) { if (!__builtin_constant_p (__size) || !__builtin_constant_p (__n) || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2))) - return __fread_chk (__ptr, __bos0 (__ptr), __size, __n, __stream); + return __fread_chk (__ptr, __objsize0 (__ptr), __size, __n, __stream); - if (__size * __n > __bos0 (__ptr)) - return __fread_chk_warn (__ptr, __bos0 (__ptr), __size, __n, __stream); + if (__size * __n > __objsize0 (__ptr)) + return __fread_chk_warn (__ptr, __objsize0 (__ptr), __size, __n, + __stream); } return __fread_alias (__ptr, __size, __n, __stream); } @@ -319,13 +320,13 @@ extern char *__REDIRECT (__fgets_unlocked_chk_warn, __fortify_function __wur __attr_access ((__write_only__, 1, 2)) char * fgets_unlocked (char *__restrict __s, int __n, FILE *__restrict __stream) { - if (__bos (__s) != (size_t) -1) + if (__objsize (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) - return __fgets_unlocked_chk (__s, __bos (__s), __n, __stream); + return __fgets_unlocked_chk (__s, __objsize (__s), __n, __stream); - if ((size_t) __n > __bos (__s)) - return __fgets_unlocked_chk_warn (__s, __bos (__s), __n, __stream); + if ((size_t) __n > __objsize (__s)) + return __fgets_unlocked_chk_warn (__s, __objsize (__s), __n, __stream); } return __fgets_unlocked_alias (__s, __n, __stream); } @@ -352,17 +353,17 @@ __fortify_function __wur size_t fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) { - if (__bos0 (__ptr) != (size_t) -1) + if (__objsize0 (__ptr) != (size_t) -1) { if (!__builtin_constant_p (__size) || !__builtin_constant_p (__n) || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2))) - return __fread_unlocked_chk (__ptr, __bos0 (__ptr), __size, __n, + return __fread_unlocked_chk (__ptr, __objsize0 (__ptr), __size, __n, __stream); - if (__size * __n > __bos0 (__ptr)) - return __fread_unlocked_chk_warn (__ptr, __bos0 (__ptr), __size, __n, - __stream); + if (__size * __n > __objsize0 (__ptr)) + return __fread_unlocked_chk_warn (__ptr, __objsize0 (__ptr), __size, + __n, __stream); } # ifdef __USE_EXTERN_INLINES diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h index 725a83eb0d..e1c44da01c 100644 --- a/posix/bits/unistd.h +++ b/posix/bits/unistd.h @@ -35,13 +35,13 @@ extern ssize_t __REDIRECT (__read_chk_warn, __fortify_function __wur ssize_t read (int __fd, void *__buf, size_t __nbytes) { - if (__bos0 (__buf) != (size_t) -1) + if (__objsize0 (__buf) != (size_t) -1) { if (!__builtin_constant_p (__nbytes)) - return __read_chk (__fd, __buf, __nbytes, __bos0 (__buf)); + return __read_chk (__fd, __buf, __nbytes, __objsize0 (__buf)); - if (__nbytes > __bos0 (__buf)) - return __read_chk_warn (__fd, __buf, __nbytes, __bos0 (__buf)); + if (__nbytes > __objsize0 (__buf)) + return __read_chk_warn (__fd, __buf, __nbytes, __objsize0 (__buf)); } return __read_alias (__fd, __buf, __nbytes); } @@ -77,14 +77,15 @@ extern ssize_t __REDIRECT (__pread64_chk_warn, __fortify_function __wur ssize_t pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset) { - if (__bos0 (__buf) != (size_t) -1) + if (__objsize0 (__buf) != (size_t) -1) { if (!__builtin_constant_p (__nbytes)) - return __pread_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf)); + return __pread_chk (__fd, __buf, __nbytes, __offset, + __objsize0 (__buf)); - if ( __nbytes > __bos0 (__buf)) + if ( __nbytes > __objsize0 (__buf)) return __pread_chk_warn (__fd, __buf, __nbytes, __offset, - __bos0 (__buf)); + __objsize0 (__buf)); } return __pread_alias (__fd, __buf, __nbytes, __offset); } @@ -92,14 +93,15 @@ pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset) __fortify_function __wur ssize_t pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset) { - if (__bos0 (__buf) != (size_t) -1) + if (__objsize0 (__buf) != (size_t) -1) { if (!__builtin_constant_p (__nbytes)) - return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf)); + return __pread64_chk (__fd, __buf, __nbytes, __offset, + __objsize0 (__buf)); - if ( __nbytes > __bos0 (__buf)) + if ( __nbytes > __objsize0 (__buf)) return __pread64_chk_warn (__fd, __buf, __nbytes, __offset, - __bos0 (__buf)); + __objsize0 (__buf)); } return __pread64_alias (__fd, __buf, __nbytes, __offset); @@ -110,14 +112,15 @@ pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset) __fortify_function __wur ssize_t pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset) { - if (__bos0 (__buf) != (size_t) -1) + if (__objsize0 (__buf) != (size_t) -1) { if (!__builtin_constant_p (__nbytes)) - return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf)); + return __pread64_chk (__fd, __buf, __nbytes, __offset, + __objsize0 (__buf)); - if ( __nbytes > __bos0 (__buf)) + if ( __nbytes > __objsize0 (__buf)) return __pread64_chk_warn (__fd, __buf, __nbytes, __offset, - __bos0 (__buf)); + __objsize0 (__buf)); } return __pread64_alias (__fd, __buf, __nbytes, __offset); @@ -145,13 +148,13 @@ __fortify_function __nonnull ((1, 2)) __wur ssize_t __NTH (readlink (const char *__restrict __path, char *__restrict __buf, size_t __len)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__len)) - return __readlink_chk (__path, __buf, __len, __bos (__buf)); + return __readlink_chk (__path, __buf, __len, __objsize (__buf)); - if ( __len > __bos (__buf)) - return __readlink_chk_warn (__path, __buf, __len, __bos (__buf)); + if ( __len > __objsize (__buf)) + return __readlink_chk_warn (__path, __buf, __len, __objsize (__buf)); } return __readlink_alias (__path, __buf, __len); } @@ -179,14 +182,15 @@ __fortify_function __nonnull ((2, 3)) __wur ssize_t __NTH (readlinkat (int __fd, const char *__restrict __path, char *__restrict __buf, size_t __len)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__len)) - return __readlinkat_chk (__fd, __path, __buf, __len, __bos (__buf)); + return __readlinkat_chk (__fd, __path, __buf, __len, + __objsize (__buf)); - if (__len > __bos (__buf)) + if (__len > __objsize (__buf)) return __readlinkat_chk_warn (__fd, __path, __buf, __len, - __bos (__buf)); + __objsize (__buf)); } return __readlinkat_alias (__fd, __path, __buf, __len); } @@ -206,13 +210,13 @@ extern char *__REDIRECT_NTH (__getcwd_chk_warn, __fortify_function __wur char * __NTH (getcwd (char *__buf, size_t __size)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__size)) - return __getcwd_chk (__buf, __size, __bos (__buf)); + return __getcwd_chk (__buf, __size, __objsize (__buf)); - if (__size > __bos (__buf)) - return __getcwd_chk_warn (__buf, __size, __bos (__buf)); + if (__size > __objsize (__buf)) + return __getcwd_chk_warn (__buf, __size, __objsize (__buf)); } return __getcwd_alias (__buf, __size); } @@ -227,8 +231,8 @@ extern char *__REDIRECT_NTH (__getwd_warn, (char *__buf), getwd) __fortify_function __nonnull ((1)) __attribute_deprecated__ __wur char * __NTH (getwd (char *__buf)) { - if (__bos (__buf) != (size_t) -1) - return __getwd_chk (__buf, __bos (__buf)); + if (__objsize (__buf) != (size_t) -1) + return __getwd_chk (__buf, __objsize (__buf)); return __getwd_warn (__buf); } #endif @@ -248,13 +252,13 @@ extern size_t __REDIRECT_NTH (__confstr_chk_warn, __fortify_function size_t __NTH (confstr (int __name, char *__buf, size_t __len)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__len)) - return __confstr_chk (__name, __buf, __len, __bos (__buf)); + return __confstr_chk (__name, __buf, __len, __objsize (__buf)); - if (__bos (__buf) < __len) - return __confstr_chk_warn (__name, __buf, __len, __bos (__buf)); + if (__objsize (__buf) < __len) + return __confstr_chk_warn (__name, __buf, __len, __objsize (__buf)); } return __confstr_alias (__name, __buf, __len); } @@ -273,13 +277,13 @@ extern int __REDIRECT_NTH (__getgroups_chk_warn, __fortify_function int __NTH (getgroups (int __size, __gid_t __list[])) { - if (__bos (__list) != (size_t) -1) + if (__objsize (__list) != (size_t) -1) { if (!__builtin_constant_p (__size) || __size < 0) - return __getgroups_chk (__size, __list, __bos (__list)); + return __getgroups_chk (__size, __list, __objsize (__list)); - if (__size * sizeof (__gid_t) > __bos (__list)) - return __getgroups_chk_warn (__size, __list, __bos (__list)); + if (__size * sizeof (__gid_t) > __objsize (__list)) + return __getgroups_chk_warn (__size, __list, __objsize (__list)); } return __getgroups_alias (__size, __list); } @@ -300,13 +304,13 @@ extern int __REDIRECT_NTH (__ttyname_r_chk_warn, __fortify_function int __NTH (ttyname_r (int __fd, char *__buf, size_t __buflen)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__buflen)) - return __ttyname_r_chk (__fd, __buf, __buflen, __bos (__buf)); + return __ttyname_r_chk (__fd, __buf, __buflen, __objsize (__buf)); - if (__buflen > __bos (__buf)) - return __ttyname_r_chk_warn (__fd, __buf, __buflen, __bos (__buf)); + if (__buflen > __objsize (__buf)) + return __ttyname_r_chk_warn (__fd, __buf, __buflen, __objsize (__buf)); } return __ttyname_r_alias (__fd, __buf, __buflen); } @@ -326,13 +330,13 @@ extern int __REDIRECT (__getlogin_r_chk_warn, __fortify_function int getlogin_r (char *__buf, size_t __buflen) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__buflen)) - return __getlogin_r_chk (__buf, __buflen, __bos (__buf)); + return __getlogin_r_chk (__buf, __buflen, __objsize (__buf)); - if (__buflen > __bos (__buf)) - return __getlogin_r_chk_warn (__buf, __buflen, __bos (__buf)); + if (__buflen > __objsize (__buf)) + return __getlogin_r_chk_warn (__buf, __buflen, __objsize (__buf)); } return __getlogin_r_alias (__buf, __buflen); } @@ -354,13 +358,13 @@ extern int __REDIRECT_NTH (__gethostname_chk_warn, __fortify_function int __NTH (gethostname (char *__buf, size_t __buflen)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__buflen)) - return __gethostname_chk (__buf, __buflen, __bos (__buf)); + return __gethostname_chk (__buf, __buflen, __objsize (__buf)); - if (__buflen > __bos (__buf)) - return __gethostname_chk_warn (__buf, __buflen, __bos (__buf)); + if (__buflen > __objsize (__buf)) + return __gethostname_chk_warn (__buf, __buflen, __objsize (__buf)); } return __gethostname_alias (__buf, __buflen); } @@ -384,13 +388,13 @@ extern int __REDIRECT_NTH (__getdomainname_chk_warn, __fortify_function int __NTH (getdomainname (char *__buf, size_t __buflen)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__buflen)) - return __getdomainname_chk (__buf, __buflen, __bos (__buf)); + return __getdomainname_chk (__buf, __buflen, __objsize (__buf)); - if (__buflen > __bos (__buf)) - return __getdomainname_chk_warn (__buf, __buflen, __bos (__buf)); + if (__buflen > __objsize (__buf)) + return __getdomainname_chk_warn (__buf, __buflen, __objsize (__buf)); } return __getdomainname_alias (__buf, __buflen); } diff --git a/socket/bits/socket2.h b/socket/bits/socket2.h index c0421ce244..7f11cbeba9 100644 --- a/socket/bits/socket2.h +++ b/socket/bits/socket2.h @@ -33,13 +33,13 @@ extern ssize_t __REDIRECT (__recv_chk_warn, __fortify_function ssize_t recv (int __fd, void *__buf, size_t __n, int __flags) { - if (__bos0 (__buf) != (size_t) -1) + if (__objsize0 (__buf) != (size_t) -1) { if (!__builtin_constant_p (__n)) - return __recv_chk (__fd, __buf, __n, __bos0 (__buf), __flags); + return __recv_chk (__fd, __buf, __n, __objsize0 (__buf), __flags); - if (__n > __bos0 (__buf)) - return __recv_chk_warn (__fd, __buf, __n, __bos0 (__buf), __flags); + if (__n > __objsize0 (__buf)) + return __recv_chk_warn (__fd, __buf, __n, __objsize0 (__buf), __flags); } return __recv_alias (__fd, __buf, __n, __flags); } @@ -64,14 +64,14 @@ __fortify_function ssize_t recvfrom (int __fd, void *__restrict __buf, size_t __n, int __flags, __SOCKADDR_ARG __addr, socklen_t *__restrict __addr_len) { - if (__bos0 (__buf) != (size_t) -1) + if (__objsize0 (__buf) != (size_t) -1) { if (!__builtin_constant_p (__n)) - return __recvfrom_chk (__fd, __buf, __n, __bos0 (__buf), __flags, + return __recvfrom_chk (__fd, __buf, __n, __objsize0 (__buf), __flags, __addr, __addr_len); - if (__n > __bos0 (__buf)) - return __recvfrom_chk_warn (__fd, __buf, __n, __bos0 (__buf), __flags, - __addr, __addr_len); + if (__n > __objsize0 (__buf)) + return __recvfrom_chk_warn (__fd, __buf, __n, __objsize0 (__buf), + __flags, __addr, __addr_len); } return __recvfrom_alias (__fd, __buf, __n, __flags, __addr, __addr_len); } diff --git a/stdlib/bits/stdlib.h b/stdlib/bits/stdlib.h index 9134d3f36b..3cb1bd9721 100644 --- a/stdlib/bits/stdlib.h +++ b/stdlib/bits/stdlib.h @@ -36,13 +36,14 @@ extern char *__REDIRECT_NTH (__realpath_chk_warn, __fortify_function __wur char * __NTH (realpath (const char *__restrict __name, char *__restrict __resolved)) { - if (__bos (__resolved) != (size_t) -1) + if (__objsize (__resolved) != (size_t) -1) { #if defined _LIBC_LIMITS_H_ && defined PATH_MAX - if (__bos (__resolved) < PATH_MAX) - return __realpath_chk_warn (__name, __resolved, __bos (__resolved)); + if (__objsize (__resolved) < PATH_MAX) + return __realpath_chk_warn (__name, __resolved, + __objsize (__resolved)); #endif - return __realpath_chk (__name, __resolved, __bos (__resolved)); + return __realpath_chk (__name, __resolved, __objsize (__resolved)); } return __realpath_alias (__name, __resolved); @@ -64,12 +65,12 @@ extern int __REDIRECT_NTH (__ptsname_r_chk_warn, __fortify_function int __NTH (ptsname_r (int __fd, char *__buf, size_t __buflen)) { - if (__bos (__buf) != (size_t) -1) + if (__objsize (__buf) != (size_t) -1) { if (!__builtin_constant_p (__buflen)) - return __ptsname_r_chk (__fd, __buf, __buflen, __bos (__buf)); - if (__buflen > __bos (__buf)) - return __ptsname_r_chk_warn (__fd, __buf, __buflen, __bos (__buf)); + return __ptsname_r_chk (__fd, __buf, __buflen, __objsize (__buf)); + if (__buflen > __objsize (__buf)) + return __ptsname_r_chk_warn (__fd, __buf, __buflen, __objsize (__buf)); } return __ptsname_r_alias (__fd, __buf, __buflen); } @@ -90,8 +91,8 @@ __NTH (wctomb (char *__s, wchar_t __wchar)) #if defined MB_LEN_MAX && MB_LEN_MAX != __STDLIB_MB_LEN_MAX # error "Assumed value of MB_LEN_MAX wrong" #endif - if (__bos (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __bos (__s)) - return __wctomb_chk (__s, __wchar, __bos (__s)); + if (__objsize (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __objsize (__s)) + return __wctomb_chk (__s, __wchar, __objsize (__s)); return __wctomb_alias (__s, __wchar); } @@ -116,15 +117,15 @@ __fortify_function size_t __NTH (mbstowcs (wchar_t *__restrict __dst, const char *__restrict __src, size_t __len)) { - if (__bos (__dst) != (size_t) -1) + if (__objsize (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __mbstowcs_chk (__dst, __src, __len, - __bos (__dst) / sizeof (wchar_t)); + __objsize (__dst) / sizeof (wchar_t)); - if (__len > __bos (__dst) / sizeof (wchar_t)) + if (__len > __objsize (__dst) / sizeof (wchar_t)) return __mbstowcs_chk_warn (__dst, __src, __len, - __bos (__dst) / sizeof (wchar_t)); + __objsize (__dst) / sizeof (wchar_t)); } return __mbstowcs_alias (__dst, __src, __len); } @@ -149,12 +150,12 @@ __fortify_function size_t __NTH (wcstombs (char *__restrict __dst, const wchar_t *__restrict __src, size_t __len)) { - if (__bos (__dst) != (size_t) -1) + if (__objsize (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) - return __wcstombs_chk (__dst, __src, __len, __bos (__dst)); - if (__len > __bos (__dst)) - return __wcstombs_chk_warn (__dst, __src, __len, __bos (__dst)); + return __wcstombs_chk (__dst, __src, __len, __objsize (__dst)); + if (__len > __objsize (__dst)) + return __wcstombs_chk_warn (__dst, __src, __len, __objsize (__dst)); } return __wcstombs_alias (__dst, __src, __len); } diff --git a/wcsmbs/bits/wchar2.h b/wcsmbs/bits/wchar2.h index 86e8e23e76..6a67b4bc1c 100644 --- a/wcsmbs/bits/wchar2.h +++ b/wcsmbs/bits/wchar2.h @@ -39,15 +39,15 @@ __fortify_function wchar_t * __NTH (wmemcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n)) { - if (__bos0 (__s1) != (size_t) -1) + if (__objsize0 (__s1) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmemcpy_chk (__s1, __s2, __n, - __bos0 (__s1) / sizeof (wchar_t)); + __objsize0 (__s1) / sizeof (wchar_t)); - if (__n > __bos0 (__s1) / sizeof (wchar_t)) + if (__n > __objsize0 (__s1) / sizeof (wchar_t)) return __wmemcpy_chk_warn (__s1, __s2, __n, - __bos0 (__s1) / sizeof (wchar_t)); + __objsize0 (__s1) / sizeof (wchar_t)); } return __wmemcpy_alias (__s1, __s2, __n); } @@ -67,15 +67,15 @@ extern wchar_t *__REDIRECT_NTH (__wmemmove_chk_warn, __fortify_function wchar_t * __NTH (wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n)) { - if (__bos0 (__s1) != (size_t) -1) + if (__objsize0 (__s1) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmemmove_chk (__s1, __s2, __n, - __bos0 (__s1) / sizeof (wchar_t)); + __objsize0 (__s1) / sizeof (wchar_t)); - if (__n > __bos0 (__s1) / sizeof (wchar_t)) + if (__n > __objsize0 (__s1) / sizeof (wchar_t)) return __wmemmove_chk_warn (__s1, __s2, __n, - __bos0 (__s1) / sizeof (wchar_t)); + __objsize0 (__s1) / sizeof (wchar_t)); } return __wmemmove_alias (__s1, __s2, __n); } @@ -100,15 +100,15 @@ __fortify_function wchar_t * __NTH (wmempcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n)) { - if (__bos0 (__s1) != (size_t) -1) + if (__objsize0 (__s1) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmempcpy_chk (__s1, __s2, __n, - __bos0 (__s1) / sizeof (wchar_t)); + __objsize0 (__s1) / sizeof (wchar_t)); - if (__n > __bos0 (__s1) / sizeof (wchar_t)) + if (__n > __objsize0 (__s1) / sizeof (wchar_t)) return __wmempcpy_chk_warn (__s1, __s2, __n, - __bos0 (__s1) / sizeof (wchar_t)); + __objsize0 (__s1) / sizeof (wchar_t)); } return __wmempcpy_alias (__s1, __s2, __n); } @@ -128,14 +128,15 @@ extern wchar_t *__REDIRECT_NTH (__wmemset_chk_warn, __fortify_function wchar_t * __NTH (wmemset (wchar_t *__s, wchar_t __c, size_t __n)) { - if (__bos0 (__s) != (size_t) -1) + if (__objsize0 (__s) != (size_t) -1) { if (!__builtin_constant_p (__n)) - return __wmemset_chk (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t)); + return __wmemset_chk (__s, __c, __n, + __objsize0 (__s) / sizeof (wchar_t)); - if (__n > __bos0 (__s) / sizeof (wchar_t)) + if (__n > __objsize0 (__s) / sizeof (wchar_t)) return __wmemset_chk_warn (__s, __c, __n, - __bos0 (__s) / sizeof (wchar_t)); + __objsize0 (__s) / sizeof (wchar_t)); } return __wmemset_alias (__s, __c, __n); } @@ -151,8 +152,8 @@ extern wchar_t *__REDIRECT_NTH (__wcscpy_alias, __fortify_function wchar_t * __NTH (wcscpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src)) { - if (__bos (__dest) != (size_t) -1) - return __wcscpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); + if (__objsize (__dest) != (size_t) -1) + return __wcscpy_chk (__dest, __src, __objsize (__dest) / sizeof (wchar_t)); return __wcscpy_alias (__dest, __src); } @@ -167,8 +168,8 @@ extern wchar_t *__REDIRECT_NTH (__wcpcpy_alias, __fortify_function wchar_t * __NTH (wcpcpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src)) { - if (__bos (__dest) != (size_t) -1) - return __wcpcpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); + if (__objsize (__dest) != (size_t) -1) + return __wcpcpy_chk (__dest, __src, __objsize (__dest) / sizeof (wchar_t)); return __wcpcpy_alias (__dest, __src); } @@ -191,14 +192,14 @@ __fortify_function wchar_t * __NTH (wcsncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n)) { - if (__bos (__dest) != (size_t) -1) + if (__objsize (__dest) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wcsncpy_chk (__dest, __src, __n, - __bos (__dest) / sizeof (wchar_t)); - if (__n > __bos (__dest) / sizeof (wchar_t)) + __objsize (__dest) / sizeof (wchar_t)); + if (__n > __objsize (__dest) / sizeof (wchar_t)) return __wcsncpy_chk_warn (__dest, __src, __n, - __bos (__dest) / sizeof (wchar_t)); + __objsize (__dest) / sizeof (wchar_t)); } return __wcsncpy_alias (__dest, __src, __n); } @@ -222,14 +223,14 @@ __fortify_function wchar_t * __NTH (wcpncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n)) { - if (__bos (__dest) != (size_t) -1) + if (__objsize (__dest) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wcpncpy_chk (__dest, __src, __n, - __bos (__dest) / sizeof (wchar_t)); - if (__n > __bos (__dest) / sizeof (wchar_t)) + __objsize (__dest) / sizeof (wchar_t)); + if (__n > __objsize (__dest) / sizeof (wchar_t)) return __wcpncpy_chk_warn (__dest, __src, __n, - __bos (__dest) / sizeof (wchar_t)); + __objsize (__dest) / sizeof (wchar_t)); } return __wcpncpy_alias (__dest, __src, __n); } @@ -245,8 +246,8 @@ extern wchar_t *__REDIRECT_NTH (__wcscat_alias, __fortify_function wchar_t * __NTH (wcscat (wchar_t *__restrict __dest, const wchar_t *__restrict __src)) { - if (__bos (__dest) != (size_t) -1) - return __wcscat_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); + if (__objsize (__dest) != (size_t) -1) + return __wcscat_chk (__dest, __src, __objsize (__dest) / sizeof (wchar_t)); return __wcscat_alias (__dest, __src); } @@ -263,9 +264,9 @@ __fortify_function wchar_t * __NTH (wcsncat (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n)) { - if (__bos (__dest) != (size_t) -1) + if (__objsize (__dest) != (size_t) -1) return __wcsncat_chk (__dest, __src, __n, - __bos (__dest) / sizeof (wchar_t)); + __objsize (__dest) / sizeof (wchar_t)); return __wcsncat_alias (__dest, __src, __n); } @@ -285,18 +286,18 @@ __fortify_function int __NTH (swprintf (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, ...)) { - if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) + if (__objsize (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) return __swprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, - __bos (__s) / sizeof (wchar_t), + __objsize (__s) / sizeof (wchar_t), __fmt, __va_arg_pack ()); return __swprintf_alias (__s, __n, __fmt, __va_arg_pack ()); } #elif !defined __cplusplus /* XXX We might want to have support in gcc for swprintf. */ # define swprintf(s, n, ...) \ - (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \ + (__objsize (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \ ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, \ - __bos (s) / sizeof (wchar_t), __VA_ARGS__) \ + __objsize (s) / sizeof (wchar_t), __VA_ARGS__) \ : swprintf (s, n, __VA_ARGS__)) #endif @@ -315,9 +316,9 @@ __fortify_function int __NTH (vswprintf (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, __gnuc_va_list __ap)) { - if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) + if (__objsize (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, - __bos (__s) / sizeof (wchar_t), __fmt, __ap); + __objsize (__s) / sizeof (wchar_t), __fmt, __ap); return __vswprintf_alias (__s, __n, __fmt, __ap); } @@ -383,14 +384,14 @@ extern wchar_t *__REDIRECT (__fgetws_chk_warn, __fortify_function __wur wchar_t * fgetws (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream) { - if (__bos (__s) != (size_t) -1) + if (__objsize (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) - return __fgetws_chk (__s, __bos (__s) / sizeof (wchar_t), + return __fgetws_chk (__s, __objsize (__s) / sizeof (wchar_t), __n, __stream); - if ((size_t) __n > __bos (__s) / sizeof (wchar_t)) - return __fgetws_chk_warn (__s, __bos (__s) / sizeof (wchar_t), + if ((size_t) __n > __objsize (__s) / sizeof (wchar_t)) + return __fgetws_chk_warn (__s, __objsize (__s) / sizeof (wchar_t), __n, __stream); } return __fgetws_alias (__s, __n, __stream); @@ -414,14 +415,15 @@ extern wchar_t *__REDIRECT (__fgetws_unlocked_chk_warn, __fortify_function __wur wchar_t * fgetws_unlocked (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream) { - if (__bos (__s) != (size_t) -1) + if (__objsize (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) - return __fgetws_unlocked_chk (__s, __bos (__s) / sizeof (wchar_t), + return __fgetws_unlocked_chk (__s, __objsize (__s) / sizeof (wchar_t), __n, __stream); - if ((size_t) __n > __bos (__s) / sizeof (wchar_t)) - return __fgetws_unlocked_chk_warn (__s, __bos (__s) / sizeof (wchar_t), + if ((size_t) __n > __objsize (__s) / sizeof (wchar_t)) + return __fgetws_unlocked_chk_warn (__s, + __objsize (__s) / sizeof (wchar_t), __n, __stream); } return __fgetws_unlocked_alias (__s, __n, __stream); @@ -447,8 +449,8 @@ __NTH (wcrtomb (char *__restrict __s, wchar_t __wchar, #if defined MB_LEN_MAX && MB_LEN_MAX != __WCHAR_MB_LEN_MAX # error "Assumed value of MB_LEN_MAX wrong" #endif - if (__bos (__s) != (size_t) -1 && __WCHAR_MB_LEN_MAX > __bos (__s)) - return __wcrtomb_chk (__s, __wchar, __ps, __bos (__s)); + if (__objsize (__s) != (size_t) -1 && __WCHAR_MB_LEN_MAX > __objsize (__s)) + return __wcrtomb_chk (__s, __wchar, __ps, __objsize (__s)); return __wcrtomb_alias (__s, __wchar, __ps); } @@ -474,15 +476,15 @@ __fortify_function size_t __NTH (mbsrtowcs (wchar_t *__restrict __dst, const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps)) { - if (__bos (__dst) != (size_t) -1) + if (__objsize (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __mbsrtowcs_chk (__dst, __src, __len, __ps, - __bos (__dst) / sizeof (wchar_t)); + __objsize (__dst) / sizeof (wchar_t)); - if (__len > __bos (__dst) / sizeof (wchar_t)) + if (__len > __objsize (__dst) / sizeof (wchar_t)) return __mbsrtowcs_chk_warn (__dst, __src, __len, __ps, - __bos (__dst) / sizeof (wchar_t)); + __objsize (__dst) / sizeof (wchar_t)); } return __mbsrtowcs_alias (__dst, __src, __len, __ps); } @@ -508,13 +510,14 @@ __fortify_function size_t __NTH (wcsrtombs (char *__restrict __dst, const wchar_t **__restrict __src, size_t __len, mbstate_t *__restrict __ps)) { - if (__bos (__dst) != (size_t) -1) + if (__objsize (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) - return __wcsrtombs_chk (__dst, __src, __len, __ps, __bos (__dst)); + return __wcsrtombs_chk (__dst, __src, __len, __ps, __objsize (__dst)); - if (__len > __bos (__dst)) - return __wcsrtombs_chk_warn (__dst, __src, __len, __ps, __bos (__dst)); + if (__len > __objsize (__dst)) + return __wcsrtombs_chk_warn (__dst, __src, __len, __ps, + __objsize (__dst)); } return __wcsrtombs_alias (__dst, __src, __len, __ps); } @@ -542,15 +545,15 @@ __fortify_function size_t __NTH (mbsnrtowcs (wchar_t *__restrict __dst, const char **__restrict __src, size_t __nmc, size_t __len, mbstate_t *__restrict __ps)) { - if (__bos (__dst) != (size_t) -1) + if (__objsize (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __mbsnrtowcs_chk (__dst, __src, __nmc, __len, __ps, - __bos (__dst) / sizeof (wchar_t)); + __objsize (__dst) / sizeof (wchar_t)); - if (__len > __bos (__dst) / sizeof (wchar_t)) + if (__len > __objsize (__dst) / sizeof (wchar_t)) return __mbsnrtowcs_chk_warn (__dst, __src, __nmc, __len, __ps, - __bos (__dst) / sizeof (wchar_t)); + __objsize (__dst) / sizeof (wchar_t)); } return __mbsnrtowcs_alias (__dst, __src, __nmc, __len, __ps); } @@ -578,15 +581,15 @@ __fortify_function size_t __NTH (wcsnrtombs (char *__restrict __dst, const wchar_t **__restrict __src, size_t __nwc, size_t __len, mbstate_t *__restrict __ps)) { - if (__bos (__dst) != (size_t) -1) + if (__objsize (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __wcsnrtombs_chk (__dst, __src, __nwc, __len, __ps, - __bos (__dst)); + __objsize (__dst)); - if (__len > __bos (__dst)) + if (__len > __objsize (__dst)) return __wcsnrtombs_chk_warn (__dst, __src, __nwc, __len, __ps, - __bos (__dst)); + __objsize (__dst)); } return __wcsnrtombs_alias (__dst, __src, __nwc, __len, __ps); }